svumj>s /^yy,. 



Bulletin of the Museum of Comparative Zoology 



AT HARVARD COLLEGE. 



Vol. LVIII. No. 2. 



EXPLORATIONS IN THE GULF OF MAINE, JULY AND 

 AUGUST, 1912, BY THE U. S. FISHERIES SCHOONER 

 GRAMPUS. OCEANOGRAPHY AND NOTES ON 

 THE PLANKTON. 



By Henry B. Bigelow. v *-V0LQGY 



With Nine Plates 



DIVISION MARINE 

 INVERTEBRATES 



Published by Permission of H. M. Smith, U. S. Fish Commissioner.) 



CAMBRIDGE, MASS., U. S. A.: 



PRINTED FOR THE MUSEUM. 



February, 1914. 



1*0 



